Grease coupler



FIG. 1 illustrates a front perspective view of a grease coupler;

FIG. 2 illustrates a back perspective view thereof;

FIG. 3 illustrates a front elevational view thereof;

FIG. 4 illustrates a rear elevational view thereof;

FIG. 5 illustrates a left side elevational view thereof (the right side is a mirror image of the left side);

FIG. 6 illustrates a top plan view thereof; and,

FIG. 7 illustrates a bottom plan view thereof.

The dashed broken lines depict portions of the grease coupler that form no part of the claim. The “M” symbol is a registered trademark of Macnaught Pty Ltd (Registration No. 5963795) and forms no part of the claimed design. The “KY+” symbol is a registered trademark of Macnaught Pty Ltd (Registration No. 87701331) and forms no part of the claimed design. 

CLAIM The ornamental design for a grease coupler, as shown and described. 